import java.util.*;

public class Demo6727 {



	 public static void main(String[] args) {
		    //stream
		    	Arrays.stream(getCourses())
			.sorted((c1,c2)->c1.getTerm().compareToIgnoreCase(c2.getTerm()))
			.forEach(System.out::println);
		    System.out.println("最低分:"+Arrays.stream(getCourses()).mapToInt(c1->c1.getScore()).min().getAsInt());
			System.out.println("最高分:"+Arrays.stream(getCourses()).mapToInt(c1->c1.getScore()).max().getAsInt());
			System.out.println("平均分:"+Arrays.stream(getCourses()).mapToInt(c1->c1.getScore()).average().getAsDouble());
			System.out.println("85分以上：");
			
			Arrays.stream(getCourses())
			.filter(c1->c1.getScore()>85)
			.forEach(System.out::println);
		  }

  private static Course6727[] getCourses() {
    //使用数组保存一组对象
    Course6727[] courses=new Course6727[10];
    courses[0]=new Course6727("A001", "C程序设计基础", "1上", 4, 80);
    courses[1]=new Course6727("B002", "Pthon程序基础", "1下", 2, 85);
    courses[2]=new Course6727("A002", "面向对象程序设计", "2上", 3, 78);
    courses[3]=new Course6727("C001", "Java程序高级开发", "3上", 2, 83);
    courses[4]=new Course6727("C002", "软件工程与UML", "3下", 3, 75);
    courses[5]=new Course6727("B001", "操作系统", "2下", 3, 90);
    courses[6]=new Course6727("A003", "数据库原理", "2上", 3, 78);
    courses[7]=new Course6727("B003", "网络基础", "3上", 3, 75);
    courses[8]=new Course6727("0001", "大学英语", "1上", 3, 80);
    courses[9]=new Course6727("0002", "高等数学", "1下", 2, 85);
    return courses;
  }

}
